Gene flow among populations or species and incomplete lineage sorting (ILS) are two
evolutionary processes responsible for generating gene tree discordance and therefore …

Both gene-tree discordance and unrecognized diversity are sources of error for accurate
estimation of species trees, and can affect downstream diversification analyses by obscuring …

Phylogenetic analysis attempts to reconstruct the genealogical history of evolutionary
change in biological organisms. If the genealogy is complex, involving so-called horizontal …

Abstract Model checking is a critical part of Bayesian data analysis, yet it remains largely
unused in systematic studies. Phylogeny estimation has recently moved into an era of …

The phylogeny of Amaryllidaceae tribe Hippeastreae was inferred using chloroplast (3′
ycf1, ndhF, trnL (UAA)-F (GAA)) and nuclear (ITS rDNA) sequence data under maximum …

Widespread species with morphologically and ecologically differentiated populations are
key to understand speciation because they allow investigating the different stages of the …

Background The Campanuloideae (Campanulaceae) are a highly diverse clade of
angiosperms found mostly in the Northern Hemisphere, with the highest diversity in …

• Premise of the study: Geographic isolation, habitat shifts, and hybridization have
contributed to the diversification of oceanic island floras. We investigated the contribution of …

Inferring the evolutionary history of lineages often becomes difficult when gene histories are
in conflict with each other. Introgression, for example, can cause DNA sequences from one …

Adaptive radiations such as the Darwin finches in the Galapagos or the cichlid fishes from
the Eastern African Great Lakes have been a constant source of inspiration for biologists …